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04611.25ERT Datasheet(PDF) 2 Page - Littelfuse

No. de Pieza. 04611.25ERT
Descripción  Telecom NANO2®Fuse and Teccor TeleLink® Fuse
Descarga  3 Pages
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Fabricante  LITTELFUSE [Littelfuse]
Página de inicio  http://www.littelfuse.com
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04611.25ERT Datasheet(HTML) 2 Page - Littelfuse

   
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Miniature Surface Mount
378
Surface Mount Fuses
www .littelfuse .com
®
®
Maximum Temperature Rise:
Telecom Nano2 Fuse
Temperature Reading
04611.25
< 82˚C (180˚F)
0461002.
< 50˚C (122˚F)
• Higher Currents and PCB layout designs can affect this parameter.
Readings are measured at rated current after temperature stabilizes.
Telecom NANO
Fuse 461 Series and Teccor TeleLink® Fuse
INTERRUPTING RATINGS:
50 amperes at 250 VAC.
AMBIENT TEMPERATURE
248
°F
212
°F
176
°F
140
°F
104
°F
68
°F
32
°F
-4
°F
-40
°F
-76
°F
120
°C
100
°C
80
°C
60
°C
40
°C
20
°C
0
°C
-20
°C
-40
°C
-60
°C
80
60
40
20
100
120
140
Operating Temperature is -55˚C to +125˚C with proper correction factor applied
• Ambient temperature effects are in addition to the normal derating.
Temperature Derating Curve
Surge
Minimum
Minimum
Max
Repetitions
Fuse
Peak
Peak
Rise/Min.
Each
Choices
Voltage
Current
Decay
Polarity
(V)
(A)
(
µs)
1
600
100
10/1000
25
1.25, 2.0
2
1000
100
10/360
25
1.25, 2.0
3
1000
100
10/1000
25
1.25, 2.0
4
2500
500
2/10
10
1.25, 2.0
5
1000
25
10/360
5
0.5, 1.25, 2.0
If sufficient series resistance is used, then the 0.5 fuse may be used in test conditions 1-4.
GR 1089 Inter-building requirements
GR 1089 1st level lighting surge inter-building
(Equipment under test can not be damaged & must
continue to operate properly)
GR 1089 AC power fault 2nd level (fuse can open but must
open in a safe and controlled manner)
Test
Vrms
Short
Duration
Fuse
Circuit
(A)
1
120, 277
25
15 min.
0.5, 1.25, 2.0
2
600
60
5 sec.
0.5, 1.25, 2.0
3
600
7
5 sec.
0.5, 1.25, 2.0
4
100-600
2.2
15 min..
0.5, 1.25, 2.0
5
Diagram
Diagram
15 min.
0.5, 1.25, 2.0
Fuse must open before wiring simulator fuse (MDL 2.0).
ELECTRICAL CHARACTERISTICS:
% of AmpereRating
OpeningTime
100%
4 hours, Min.
250%
1 Second, Min.; 120 Seconds, Max.
GR 1089 AC power fault 1st level inter-building
(fuse not allowed to open)
Test
Vrms
Short
Duration
Primary
Fuse
Circuit
Protector
Choices
Current
(A)
1
50
.33
15 min.
removed
1.25, 2.0
2
100
.17
15 min
removed
1.25, 2.0
3
200,400, 600
1
60 x 1 sec.
removed
1.25, 2.0
4
1000
1
60 x 1 sec.
operative
1.25, 2.0
5
Diagram
Diagram
60 x 5 sec.
removed
1.25, 2.0
6
600
0.5
30s
removed
1.25, 2.0
7
440
2.2
5 x 2 sec.
removed
1.25, 2.0
8
600
3
1.1 sec.
removed
1.25, 2.0
9
1000
5
0.4 sec.
in place
1.25, 2.0
GR 1089 2nd level lightning surge telecom port (Equipment
under test shall not become a fire, fragmentation, or electri-
cal safety hazard)
Surge
Minimum
Minimum
Max
Repetitions
Fuse
Peak
Peak
Rise/Min.
Each
Choices
Voltage
Current
Decay
Polarity
(V)
(A)
(
µs)
1
5000
500
2/10
1
0.5, 1.25, 2.0
alternative
5000
5000/8=625
8/20
1
0.5, 1.25, 2.0
The 0.5 fuse will open during these test conditions. The 1.25 & 2.0 will not open thus providing
operational compliance.


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